Naegel Ludwig C A
Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional LA PAZ, B.C.S. 23096, Mexico.
Rev Biol Trop. 2004 Mar;52(1):57-65. doi: 10.15517/rbt.v52i1.14702.
The spawning of the muricid gastropod Plicopurpura pansa in the laboratory at 22-23 degrees C is described. Females deposited 1-20 capsules daily for at least 20 weeks, and produced up to 150 capsules each per spawning season. During spawning, egg clusters were formed consisting of hundreds of capsules of different ages deposited by different females. Each egg capsule contained an average of 436 embryos (+/- s.d. 213.6, range: 95-1092, n=50). Embryos developed without nurse eggs. After six to eight weeks of intracapsular, lecithotrophic development, planktotrophic veligers hatched with two fully developed velar lobes.
描述了在22-23摄氏度的实验室条件下，荔枝螺科腹足动物Plicopurpura pansa的产卵情况。雌性每天产下1-20个卵囊，持续至少20周，每个产卵季节每个雌性最多可产150个卵囊。产卵期间，形成了卵群，由不同雌性产下的数百个不同龄期的卵囊组成。每个卵囊平均含有436个胚胎（±标准差213.6，范围：95-1092，n=50）。胚胎发育时没有护卵。经过六到八周的卵囊内卵黄营养发育后，具有两个完全发育的缘膜叶的浮游幼体孵化出来。
